Fig. 10

The proposed mechanism for the synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles] catalyzed by Fe3O4@l-arginine nanocomposite
The proposed mechanism for the synthesis of spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles] catalyzed by Fe3O4@l-arginine nanocomposite